Hey CNC Woodworkers! This video covers 10+ different ways to do work holding on a CNC table. I have different techniques that I prefer for different types of CNC router work, which have evolved a bit over the years. I specifically discuss ways that work best for a ttrack spoilboard table, but I used some of the same hold downs with my 1/420 pronged tnut table. Some techniques are better for toolpaths that are only cutting in the middle of a workpiece, others are better for flattening the entire worktop, and some others are best when you are machining away the entire sides of a piece (like CNC'ing a bowl). I briefly discuss vacuum tables and chucks, but I personally do not have one of these (yet!).

You are free to copy my 3D printed designs, and would be a great exercise in CAD. If you want to just get the files I made, I have them available here:

CAD Design / STL Files
* Low Profile Toe Clamps for 3D Printing: https://www.corbinsworkshop.com/shop/...
* Cam Side Clamps for 3D Printing: https://www.corbinsworkshop.com/shop/...

Materials / References
* Preferred double sided tape: https://amzn.to/3PG5oYP
* Alternative double sided tape: https://amzn.to/43At2eS (cheaper, but it doesn't rip as easily)
* 2nd Alternative double sided tape: https://amzn.to/3Tyd4O1 (A little "thick" for my preference)
* T bolts for Ttrack tables: https://amzn.to/3VFxDLc
* Ttracks: https://amzn.to/3TDfIlA
* CA Glue: https://amzn.to/43z6rQ1
* Blue Tape: https://amzn.to/4adEW0R
* Omer B17P Composite Nailer: https://www.avidcnc.com/omerb17pcom...
* Composite Nails on Amazon: https://amzn.to/3x8HWgi
* Raptor Composite Nails: https://www.avidcnc.com/raptorcompos...

NOTES:

Double Sided Tape: I prefer the Intertape brand listed above for the reasons I listed in the video, but I have used the other tapes, and they do work, and are cheaper.

Composite Nailer: I have NOT used the composite nailer. Usually I only put links to things I actually use on a regular basis, but I want to give a full disclaimer that I have not tried them myself. I would definitely give it a try if I didn't have a vacuum table and was doing sheet goods on a regular basis.

Blue Tape/CA Glue: I don't like to use the Blue Tape and CA Glue method anymore, but it is worth trying if you have it around and don't have double sided tape, and you can find the materials locally (Home Depot, etc). I found that a higher quality blue tape works better than cheaper blue tape. Thin CA glue works best, and accelerator
"sometimes" causes issues, so I stopped using it. The glue also doesn't work as well as it ages, even in unopened bottles.

thanks!
Corbin Dunn
https://www.corbinsworkshop.com // Products and CNC Files
https://www.corbinstreehouse.com // Blog

Chapters:
0:00 Intro & Overview
0:29 1 Low Profile Toe Clamps
3:12 2 Slotted Wood Top Clamps
5:29 3 Scrap Wood Top Clamps
6:36 4 Metal Top Clamps
7:13 5 Side Cam Clamps
10:21 6 Wedge Clamps
13:47 7 Double Sided Tape
16:42 8 Blue Tape & CA Glue
17:41 9 Screws & Nails
18:53 10 Vacuum Table / Chuck
19:27 Conclusion

* The usual disclaimer some links are Amazon affiliate links, where I earn a small commission from your purchase at no cost to you. If you only knew how much crazy amounts of time I spend making videos!